There is this tube that is firmly attached to my Cat. converter that runs up t behind my engine and I can't see where the other end goes behind my engine. It is preventing me from separating my exhaust which is in horrible disrepair and im replacing.

What is it and how is it removed? Thanks in advance for helping.

 

That feeds air from the A.I.R. pump on the engine to the converter.

 

Why? What does that do? What is this line called (I can then google it)? How is this removed to install a new exhaust ?

 

Air injection - pumps clean air into the exhaust from a small electric pump under hood. Same system feeds air injection ports in manifolding, etc. .

Should have a "disconnect" band which is crimped at catalytic convertor.

 

Ah, thank you.

 

Should clarify, there is an air pump. And then electric control box. Both under hood.

 

Yeah with further looking into this now that I know what is was I found this out. Do you happen to know if simply removing these will cause any other issues or I can disconnect and remove the system and add a delete pulley or new belt and have no negative side effects?

 

No negative effects, unless you need to pass emissions or otherwise tested.

 

In New Hampshire he shouldn't have to worry about any more than a basic safety inspection,anything pre-obd2 is not really bothered with emissions wise.

 

Will removing it cause him to have a cel?

 

The pipe/fitting? No.

 

No on belt driven pump GM ODB 1. The A.I.R system by design only injects air to the exhaust manifolds when the system is open loop. There is no ECM monitoring, i.e. current monitoring of the switching/diverter valves, downstream O2, that allows the system to detect a fault or tampering.
Had to prove this on my LG4 when it was new (along with EGR delete, not monitored until '86) when it was said it couldn't be done.